Watch-barrel.



PATBNTBD MAY 5, 1908.

w.. B. MBHL. WATCH BARREL. APPLICATION PILBD BBPVT. A27.1906.

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BY g 6 I ATTORNEY /WJWM No. 886,387. PATBNTBD MAY 5; 1,908.

. W. B, MEHL.

WATCH BARREL.

APPLICATION FILED SBPT.I27. 1906.

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ArroRA/EY WM W UNITED sTATnSrnTENT oFFrcE.

lWALTER Bi MEHL, 0F wALTHAM, ifiASSAcHUSETTS, ASSIGNOR To E. HOWARD WATCH COM- -PNY, OF RIVERSIDE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WATCH-BARREL.

Specification of Letters Patent.

Patented May 5, 1908.

Alipiicmon nies september 27, isos. semi No. 336,386.

tion being to so construct and-arran e these' partethat they may be employe either with or without the addition of a Geneva sto that is, upon the upper side or surface of t e ratchet wheel.

A further object of the invention is to so construct and varrange the parts that when employed Without the' addition of a Geneval stop, both settings for the arbor will be exposed, and soarranged that said arbor will ave its bearing points at or close to its extremities; further, to simplify the construction of this portion of the movement, and also reduce the number of the separate'parts, whereby the cost .of manufacture shall be materiali decreased and the time and labor of assembling the several parts, materially lessened.

With'these and otherends in view, the invention consists in certain novel features of construction and combination of parts, as will be hereinafter fully described and pointed out in the claims.' l

In' the accompanying drawings, Figure 1 is a plany v iew of a partof a watch movement showingthe manner of attaching thel setting to'the'ratchet wheell Fig. 2 is a Sectional view taken on the line 2-2 .of Fig. 1.

3 is a sectio'ii'- .view taken oii the line 3-3 of Fig. 1. ls 5 4 is a sectional viewv taken on the line 4ff4 of 3;' Fig. 5 is a perspective view-showing :t e ratchet wheel aving the boss or hubgmade lintegral therewith. F'l 6 is. a detaehmlspective view of the ar or.= Fig. 7 isf-afeectipnal view taken on the line 7`-7 of-Fig. 2,7showng the lower .end of the arbor locked;- in ition in' the 'main wheel. F 8 is a sectonal 'view i ofthe device'having .t 'e' Geneva stop applied i. to the up er side or surface of theiratchet y wheeh, an taken. Qn the line 8l8 oi1"`ig.j9.

-. main sprin the latter being omitted for the Fig. 9 is a plan view of a portion of the device shown in Fig. 8. Fig. 10 is a detached plan view of the settin adapted to contain the jewel bearing for t e upper end of the varbor. Q

Referrin to the drawings, 11 represents the spring arrel provided with the catch or lug 12 to which 1s secured one end' of the sake of c earness. vPartially Surrounding this spring barrel is the main wheel 18, provided with the teeth 14, the lower plate 15 of said main wheel being provided with a recess 16, as illustrated in Fig. 7, for the purpose of receiving 'the projection 17 formed on 4the lower ortion of the arbor 18. Into a recess forme in the dial plate 19, is burnished the .setting 20, containing the jewel 21 forming the bearing for the lower end 22 of the arbor 8,' the upper end of the latter having a bearing in the )ewel 23 confined in the setting 24. This setting is fitted into a recess formed in the up er face or surface of the lratchet wheel 25, an held inproper position by means of the screws 26 ,J threaded into Said ratchet wheel, andthe heads 27 of which slightly overlap said setting 24 and lock the same in position.. f

Theratchet wheel 25 is provided with an integral hub 28 acting as a bearing therefor in the barrel bridge 29, the lower end of said hub being provided with the elongated projection 30, adapted to fit in a hole or opening of similar size yand Shape formed in the spring barrel 11, whereby to turn the latter whensaid ratchetv wheel is turned or rotated in windin Throug the hub 28 are formed the holes or openings 31, through; which pass thev screws 32, the lower en s of the latter bein threaded into openings formed in the centra ythickened portieri 33 'of the spring barrel 11, this construction and arrangement securely locking the-ratchet wheel 25 to the spring barrel 11, and removably holding 'them theirfpro er relative positions. The arb or 18'is provided near its lower end withl the flange 34, whichy fits in a recess formed in the imain wheel hub 35', a nut, 36

being threaded' on the arbor' and also fittin against the upperside or surface of said hu `35, whereby to. main wheel;

asten orlock said'arbor to the I 'Ihe nut 36 is p rovi Aed* on its 'outersijde orc1tcumference-w1th ahook 37,

thelatter to rotate, and thereby wind the mam spring, the opposite end of which is se- .cured to the hook 1-2 formed on said barrel.

By reason of this construction, vit will also be 'seen that the bearings for the arbor are approximately` at the extreme ends thereof, both settings with their contained jewels being exposed. Further, by reason ofv the novel construction, the number of parts condial.

stituting this partof the mechanism of a watchA movement, is reduced; and the labor and time required for assembling the parts, materially lessened. 'This construction and arrangement of parts also permits of thea plication of a Geneva stoplto the upper side or surface of the ratchet w eel, such mechanism being usually located below or under the main s ring barrel, where it is not visible or accessi le, excepting by the removal of the As illustrated in Fig. 8, when the Geneva stop is applied to the mechanism, the arbor 38 is somewhat increased in diameter, in order that sufficient metal may be provided in which to thread a screw 39 therein, said upper end oi the arbor being formed of D- shape and adapted to fit in asimilar shaped opening in the disk 40, the latter being rovso vided with the sto ,iinger 41, the head o the screw 39 fitting own'in a recess formed to receive it in said disk 40, and securing the latter to the arbor 38. 1 v

In the ratchet wheel 42 is provided the bearing 43, around the upper end of which rotates the star wheel 44,. the latter being held in its ro er position with relation to the ratchet whee.y 42 andn ered disk 40, by means of the screw 45 t eaded into said bearing 43,.and having its head fitting in a recess Iormed in the upper side or surface o the star wheel. i

The star wheel 44 is' .provided withF the usual recesses 46, the between two oi' said recesses, as indicated at 47 being convex, while betweenthe remain-` ing recesses the periphery is concave, as illustrated at 48...'

In view of the fact that the diameter of the upper end of the arbor 38 is increased, it will or course, be necessary to increase the size of the jewel bearing therefor, and also ofthe setting 49. In order, therefore, to permit of ascrew of suicient size to lock the ratchet wheel 42 to the barrel 50, the oflset'l of the n setting 49, is provided with the recesses 53,

as illustrated in Fig'. 10.

lperiphery of the wheel l In Geneva stops of the ordinary construc-4 tion and arrangement, 'the 'fingered disk 40 in the act of Winding the Watch, is rotated with the arbor to which it is attached, and in turn rotates' the star Wheel 44. j In my improved construction, however, the fingered disk 40 remains stationary in the act of winding'the watch, the star wheel on the contrary, revolving around the fingered disk, and at the same time is. rotated by reason of the finger 41 engaging in the recesses 46 upon each revolution of the ratchet wheel.- When, however, the finger 41 entersthe recess adjacent to and 'at dne sideof that portion of. the star wheel tlgraving a convex periphery, the parts are s locked as to" prevent anV further rotation of` the ratchet whee to whic said star wheel is secured, and thereby prevents that undue strain on the main spring which the stop is designed to overcome.

As the spring unwinds and the movement runs down, the star wheel is rotated in the o posite direction by means of the rotation oi) the fingered disk 40, the latter by reason of its being tightly secured 1 to the arbor, rotating therewith. When, however, the finger 414 enters ther'ecess adjacent to and at the other side of that portion of the star wheel having a convex periphery, the parts are so locked as to prevent-any urther rotationof the arbor to which the fingered disk is secured. t l.

Having fully described my invention, what I claim'as new and desire to secure byl Letters Patent, is v 1. In mechanism of the character described, the combination with a barrel bridge and dial plate, of a sprin barrel located between sald bridge and p ate, a main wheel surrounding said barrel and having a recess ,with anintegral hub extending downwardly through said bridge, means for securing said ratchet wheei to said spring barrel, a cylindrical arbor, the ends of which are mounted in bearings provided in said ratchetv wheel formed therein, a ratchet wheei provided and dial plate, and provided near its iower end with a projection fitting inthe recess in said main wheel, and a vnut threadedon said arbor for` lookin the latter to said main wheel, substantia ly as described.

In mechanism of 'the character de scribed, the combination with a barrel bridge and dial plate, of a spri barrel located'bctween sald bridge and p ate, a main wheel surrounding said barrel having a recess formedl therein, a ratchet wheel provided Within integral hub extending'1 downwardly through said bridge, means for securing said ratchet wheel to said springbarrel, an arbor,`

the ends of which are mounted in bearings provided in said ratchet wheel and dial plate, said arbor beingl provided near itslower end with a iange aving a projection :formed thereonritting in the recess in saidmain stantially as described.

wheel, and a nut threaded on said arbor 'for locking the latter tosaid main wheel, sub- 3. In mechanism of the character described, the combination with a barrel bridge and dial plate, of a spring barrel provided with a hook and located between said-bridge and plate, 'and having an elongated opening formed inthe same, a main heel surrounding said barrel and formedwvith a recess,y

therein, a ratchet wheel provided with an integral hub extending gown through said bridge and provided on it lower end With an elongated 'projection adapted to fitin said o ening in said spring' barrel, screws passing tirough said hub and threaded into sai spring barrel for holding the latter and ratchet wheel in proper position, an arbor, the ends'of whichare mounted 1n bearings provided in said ratchet Wheel and dial plate and provided with a projection fitting in the recess insaid main wheel, and a nut provided with a hook and threaded on said arbor and bearing on the hub of said main wheel for locking said arbor thereto, substantially as described.

4. In mechanism of the character de- -scribed, the combination with an arbor, of a ratchet wheel mounted thereon and means, i

part of 4which are secured to said arbor and part to the uppr visible side of saidratchet wheel for loc 'ng said wheel and arbor against movement at redetermined points, substantially as descr'bed.`

5. In mechanism of the character de scribed the combination with a ratchet wheelA of an arbor the end of which extends through said ratchet wheel, a fingered disksecured to the up erv end of said arbor and stationary with re ation thereto, a ystar Wheel mounted on the up and revo vving around and rotatecik-by said stationary vfingered disk whensaid ratchet wheel is rotated-in the act of Winding and whereby, in the act of unwinding, the star wheel on the v,stationary ratchetiwheel is rotated by the .rotating fingered disk, substantiall as described.

Signe dlesex, and State of Massachusetts, day 'of September, A. D. 1906. Y

WALTERLB.

this 20th Witnesses: M. VANk NoRTWIoK,

N. B. SMITH.

at Waltham,`in the county of Mider visible side of said ratchet wheel ,r 

